User's Manual

Part Number LM-400
Page Number : 5 of 6
Pin N o.
Pin N a me
Pin Type
Description
1
G ND
G ND
C ommon ground
2
P VCC
Power
Power Amp. Power Supply(3.3V)
3
AIO (0)
Bi -directional
Programmable I/O terminal , 32KHz sleep clock input
4
AIO (1)
Bi -directional
Programmable I/O terminal
5
P IO (0)
Bi -directional
Programmable I/O terminal , RX Enable
6
PIO (1)
Bi -directional
Programmable I/O terminal , TX Enable
7
PIO (2)
Bi -directional
Programmable I/O terminal , USB_PULL_UP , C LK_REQ _O UT
8
PIO (3)
Bi -directional
Programmable I/O terminal , USB_WAK E_UP , C LK_REQ _IN
9
PIO (4)
Bi -directional
Programmable I/O terminal , USB_O N , BT_Priority/C h_C lk output for
co-existence signalling
10
G ND
G ND
C ommon ground
11
PIO (5)
Bi -directional
Programmable I/O terminal , USB_DETAC H , BT_Active output for co -
existence signalling
12
PIO (6)
Bi -directional
Programmable I/O terminal , CLK_REQ , WLAN_Active/C h_Data input
for for co-existence signalling
13
PIO (7)
Bi -directional
Programmable I/O terminal
14
PIO (8)
Bi -directional
Programmable I/O terminal
15
PIO (9)
Bi -directi onal
Programmable I/O terminal
16
RESET
C MO S input
Reset input of module, Active low reset
17
VC C
Power
Module power supply input
18
G ND
G ND
C ommon ground
19
G ND
G ND
C ommon ground
20
USB_DP
Bi -directional
USB data plus
21
USB_DN
Bi -directional
USB da ta minus
22
PCM_SYNC
Bi -directional
Synchronous data sync
23
PCM_IN
C MO S input
Synchronous data input
24
PCM_O UT
C MO S output
Synchronous data output
25
PCM_C LK
Bi -directional
Synchronous data clock
26
UART_RX
C MO S input
UART data input
27
UART_TX
C MO S output
UART data output
28
UART_RTS
C MO S output
UART request to send(active low)
29
G ND
G ND
C ommon ground
30
UART_C TS
C MO S input
UART clear to send(active low)
31
SPI_MO SI
C MO S input
Serial Peripheral Interface data input
32
SPI_C SB
C MO S input
C hip select for Synchronous Serial Interface(active low)
33
SPI_C LK
C MO S input
Serial Peripheral Interface clock
34
SPI_MISO
C MO S output
Serial Peripheral Interface data output
35
PIO (11)
Bi -directional
Programmable I/O terminal
36
PIO (10)
Bi -directional
Programmable I/O terminal
37
RF_IO
Analogue
Antenna interface
38
G ND
G ND
C ommon ground
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